510 DONS. — DU 19 JUIN AU 19 DÉCEMBRE 1892 



Cope : A Contribution to the Vertébrale Paleontology of Texas. — Id. : Tiaporus, 

 a new (îenus of Teiidae, 1 pi. — Id. : On sotne new and little knovvn paleozoic 

 Vertebrates,2 pi. — Id. : On the Skull of the Dinosaurian Laelaps incrassatus, Cope. 



— Transactions of the American Philosophical Society. Vol. XVII, 

 New séries, part. I et II, 1892. 



Josua Lindahl : Description of a Skull of Megalonyx leidyi, 5 pi. — Cope : On the 

 Homologies of the Posterior Cranial Arches in the Reptilia, 5 pi. — Id. : A Synopis 

 of the Species of the Teid Genus Cnemidophorus, 8 pi. 



Washington. — Smithsonian Institution. Handbook for the 

 Department of Geology in the U. S. National Muséum. Part. 1, 1892. 



P. Merril : The Materials of the Earth's Crust. 



— Smithsonian Contributions to Knowledge. Vol. XXVIII, 1892. 



— Bulletin of the United States Geological Survey. N° 79, 1891. 



Diller : A Late Volcanic Eruption in Northern California and its peculior Lora. 



Grande-Bretagne. — Dublin. — Royal Dublin Society. The 

 Scientific Proceedings. Vol. VII, p. 3 et 4 1892. 



J. Sollas : On Homotoechus ( Archoecidaris Harteana Baily) a New Genus of 

 Palaeozoic Echinoids. — Id. : On the Structure and Origin of the Quartzite Rocks 

 in the Neighbourbood of Dublin, 1 pi. 



— The Scientific Transactions. 1891, vol. IV, série II, n oS IX à XII. 



— Royal Irish Academy : Proceedings. 3 e série, vol. II, n» 2,1892. 



Llloyd : Report on the Estuarine Clays of the North. East of Ireland. 



— Transactions. Vol. XXIX, part. XVIII, 1892. 



London.— Proceedings of the Royal Society. Vol. LI, n os 310-317, 

 1892. 



— Philosophical Transactions. Vol. 182, 1891. 



W.C.Williamson: On the Organisation of the Eossil Plants of the Coal-Measures, 

 part. XVIII, 4 pi. 



— The Quarterly Journal of the Geological Society, Vol. LXVIII, 

 nos i9i et 192, 1892. 



Holmes: On Sections between -Upminster and Romford. — Lydekker : On Viverra 

 Hastingsiœ in the French Pnosphorites. — Id. : On Dinosaurian Foot-bones from 

 the Wealden. — Wethered : On the Devonian Limestones of South Devon, 1 pi. — 

 Bonney : On carboniferous « Gneiss >i at Guttannen. — Walcot Gibson : On the Gold, 

 bearing Rocks of the Southern Transvaal, 2 pi. — Cole and Butler : On Lithophyses 

 in Obsidian of the Rocche Rosse, Lipari, 1 pi. — Buckman : On the Morphology of 

 Stephanoceras zigzag, 2 pi. — Ilieks : On the Discovery of Mammoth and other 



